13231241123 has 4 divisors (see below), whose sum is σ = 13242717768. Its totient is φ = 13219764480.

The previous prime is 13231241047. The next prime is 13231241141. The reversal of 13231241123 is 32114213231.

13231241123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13231241123 is a prime.

It is a super-2 number, since 2×13231241123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13231241183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5736593 + ... + 5738898.

It is an arithmetic number, because the mean of its divisors is an integer number (3310679442).

Almost surely, 2^13231241123 is an apocalyptic number.

13231241123 is a deficient number, since it is larger than the sum of its proper divisors (11476645).

13231241123 is a wasteful number, since it uses less digits than its factorization.

13231241123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11476644.

The product of its digits is 864, while the sum is 23.

Adding to 13231241123 its reverse (32114213231), we get a palindrome (45345454354).

The spelling of 13231241123 in words is "thirteen billion, two hundred thirty-one million, two hundred forty-one thousand, one hundred twenty-three".